A car depreciates 10% each yearif you bought this car today for $6000, how much will it be worth in 7 years ?

$1800

Step-by-step explanation:

10% of 6000 is 600

For 7 years you do 600 x 7 which is 4200

$6000 - $4200 is $1800

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold